U.S. CDC survey shows reported decline in asthma, but experts wary

June 19, 2014 4:50 PM

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NEW YORK, June 19 (Reuters) - Self-reported U.S. asthma rates have fallen significantly for the first time in four years to a nine-year low, according to a survey released on Thursday, but researchers cautioned that the numbers may not mean the disease is dwindling.

About 7.4 percent of the U.S. population reported having asthma in 2013, down from a level that has hovered around 8.5 percent since 2009, the U.S. Centers for Disease Control and Prevention survey found.